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Limit orders let you set a target price for opening a leveraged position on Polymarket. Instead of executing immediately at the current market price, your capital is locked and the order rests on the Polymarket CLOB until the price is hit.

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How It Works

1

Set Your Order

Choose a market, set your margin, leverage (up to 10x), direction (Long/Short), and a target price.
2

Capital Is Locked

Your margin + vault loan + 1.5% open fee are locked immediately.
3

Order Placed on CLOB

The order is placed on the Polymarket CLOB as a resting limit order.
4

Fills Arrive

As the market hits your target price, fills arrive incrementally from the CLOB. Your position builds up with each fill.
Example: You place a limit order with $1,000 margin at 5x leverage, targeting a price of $0.45.
ComponentAmount
Your margin$1,000
Borrowed from vault$4,000
Total position size$5,000
Opening fee$15 (1.5% of margin)
Total capital locked$5,015

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Partial Fills

Limit orders support partial fills. Your position doesn’t need to fill all at once.
  • Each fill proportionally allocates margin and borrowed capital to the position
  • Entry price is the weighted average across all fills
  • The position is tradeable (can close, can be liquidated) after the first fill
  • Multiple fills accumulate into a single position
Example: Your $5,000 limit order fills in two chunks:
FillAmountPrice
First fill$3,000 (60%)$0.45
Second fill$2,000 (40%)$0.43
Weighted entry price~$0.442
After the first fill, you have a $3,000 open position. After the second fill, it grows to $5,000. The margin and borrowed capital are allocated proportionally with each fill.
Your position is fully tradeable after the first fill. You can close it, and it can be liquidated, just like any market order position.

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Cancellation & Expiry

Orders can be cancelled at any time. Orders can also have an expiry timestamp (GTD, Good Till Date). When a limit order is cancelled or expires:

Filled Portion

Remains as a normal open position. You can close it, let it run, or it will auto-close at the market close date.

Unfilled Portion

Capital is refunded proportionally. Vault gets back its borrowed share, trader gets back margin + proportional fee refund.
Example: You place a $5,000 limit order. 60% fills, then you cancel.
ComponentFilled (60%)Refunded (40%)
Margin$600 allocated to position$400 returned to trader
Borrowed$2,400 allocated to position$1,600 returned to vault
Open fee$9 consumed$6 refunded to trader

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Limit Close Orders

Open positions can also be closed via limit orders on the CLOB, not just market orders.
  • You set a target sell price, and the order rests on the CLOB
  • Each sell fill is a self-contained mini-settlement: shares, margin, and borrowed capital are proportionally reduced, and USDC is distributed immediately
  • Partial close fills reduce the position incrementally
  • The position fully closes when all shares are sold
Limit close orders give you price control when exiting. Instead of selling at whatever the current market offers, you set the price you want and wait for it.

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Market Orders vs Limit Orders

Market OrderLimit Order
ExecutionImmediate at current priceRests on CLOB until target price is hit
Open fee0.5% of margin1.5% of margin
FillsSingle fillPartial fills supported
CancellationCan cancel before executionCan cancel anytime; unfilled portion refunded
Entry priceSingle fill priceWeighted average across fills
CapitalLocked only during executionLocked until filled, cancelled, or expired